Question

【题目】---I think the classroom needs _______.

---Well, you are right.

A. clean B. cleaning C. to be cleaning D. cleaned

Answer 1

【答案】B

【解析】句意：-我认为教室需要被打扫。 -嗯,你是对的。clean动词，打扫；need to do需要做某事，主动含义；need doing需要被做，含有被动含义。“教室”需要“被打扫”。故选：B。